520 ml, double-wall vacuum 304 stainless. It is the one with styling aimed at a younger buyer, the most gift-appropriate shape here. Custom logo from 500 pieces.
The vacuum layer is what makes this work: with almost nothing left to conduct heat away, hot food stays above serving temperature through a working day, and in the larger sizes you can pour in boiling water and raw rice in the morning and open cooked congee at lunch. The inner wall is 304 stainless throughout — the grade matters because lower grades pick up odours and pass them to whatever goes in next. The closure seals inverted, which is the only test that matters for something that travels in a bag.
What that looks like on the bench: The print carries the product on a crowded shelf, which is what a differentiated SKU has to do. The 304 liner throughout — the grade decides whether it holds odours, and lower grades do. The coating is applied thick enough to resist the scratching and flaking that generates after-sales complaints. The footprint fits a normal bag without displacing everything else. The colourway photographs well, and in social-led retail that decides whether a listing moves. The closure seals under inversion rather than merely closing, which is the only test that matters for something carried in a bag. The wall thickness is above what this category usually ships, which is what keeps breakage low in freight. The colourway photographs well, which decides whether a product moves in social-led retail.
Also on the buyer’s checklist here: print, appearance, solid colour, porridge, thickened, coating, paint flaking.
When we ask why they reordered, the answers cluster:;. Reorders are the only honest measure in this business: a first order tells you the price was right, a third tells you the product was.
Also cited on repeat orders: volume, shipment planning, holiday season, promotional, print quality, gifting, custom decoration.
Choosing between them
How TW-1004 compares with the rest of the range
Buyers rarely arrive knowing which model they want — they arrive knowing the brief. This table is the fastest way to check whether TW-1004 is the right answer or whether a sibling fits better. The row highlighted is the one you are looking at. Every model listed runs from 500 pieces per design.
Every model above ships from 500 pieces per design. Mixing several of them in one container is normal — a 20ft container holds roughly 26 m³ of cartons, so a mixed load is planned on carton volume rather than on piece count. Send the full list at enquiry rather than model by model.
Who is buying TW-1004, and what they do with it
A buyer in New York orders this one regularly. The orders themselves are for annual company meetings, client visits and seasonal gifting pushes; and they picked this model because the body takes a printed logo cleanly.
Also on the buyer’s checklist here: gifting, annual meetings, custom decoration, consistent holiday season.
Where it ends up: a commute where there is no microwave at the other end; baby food carried warm rather than reheated; porridge that finishes cooking on the way; soup; a packed meal; camping and days out; iced drinks in summer. Each of those puts a different demand on the product, which is worth saying out loud when you brief us.
Also on the buyer’s checklist here: parents, baby food, heat retention, porridge, office workers, commuting, students, packed meals, outdoor use.
One order that tested it: A buyer in Colombia timed to a seasonal peak. We ran the line on overtime and moved their batch up the queue, and we worked the freight booking through with them rather than handing it over at the gate. They now order on a monthly cycle. Worth knowing because it shows what the line can absorb when a date is genuinely fixed, rather than what we would promise on a quotation.
Also in play on that job: peak season, expedited, shipment planning, restock.
Importers & wholesalers
This model packs 30 per carton (62cm×47cm×53cm for the base size — the full carton table is in the spec above), and that number decides how many pieces fit a 20ft container far more than the FOB price does. What decides your landed cost here is the carton, not the unit price: ask for the container plan before you fix a retail price, because a wide-body jar fills a 20ft on volume long before it hits the weight limit. We quote EXW Yongkang, FOB Ningbo or Shanghai, or DDP door to door, and we will say which of the three costs you least given where you are rather than defaulting to whichever is easiest for us.
Brand owners & private label
On TW-1004 the stock range is 2 colours (black, white), so a Pantone match is only worth the 1,000-piece run if none of those is close enough. Budget it as three lines, not one: decoration sits inside the unit price, a matched Pantone is its own spray run from 1,000 pieces, and packaging is separate with its own tooling and proofing round. Brands that budget these as a single number are the ones surprised at quotation: decoration sits in the unit price, a matched Pantone is a separate spray run from 1,000 pieces, and a printed colour box carries its own tooling and one proofing round. We sign an NDA before you share artwork, and a shape you tool for stays reserved to you — the same terms we have run with Hallmark since 2017 and with KRAUS for over ten years.
Retail chains
TW-1004 packs 30 per carton, so a 12-store drop lands on a clean carton multiple rather than a split case. Retail-ready means more than a colour box: UPC or EAN printed and scan-tested before the carton is sealed, carton marking to your own packaging manual, and inner counts that match what your DC expects. A barcode that fails at the till becomes a chargeback, and it is entirely preventable at our end: we print and scan-test every UPC or EAN before the carton is sealed. Ask for the retail packaging spec sheet with your first quote — it lists carton dimensions, inner counts and the UPC placement we scan-test before sealing.
Promotional distributors
TW-1004 is a single-capacity line, which is the fastest thing we can turn around when a date is already tight. Work backwards from the in-hands date, not forwards from the order date: 7–10 days for a pre-production sample, about 30 days production after approval, then 30–35 days sea freight to Europe or 25–30 to the US west coast. Production is 30 days after deposit and artwork approval, plus 7–10 days for a printed pre-production sample, plus sea freight — roughly 30–35 days to Europe, 25–30 to the US west coast. Late artwork is normal in this business; a date discovered late is not survivable — artwork approval is what starts the 30-day production clock, not the deposit. Tell us the date at enquiry and we will say honestly whether it is achievable.
Amazon & e-commerce sellers
TW-1004 ships in a 62 cm × 47 cm × 53 cm carton — send us your FBA plan and we will confirm whether that splits cleanly under the dimension cap before you book. FNSKU labels, Prop 65 and suffocation warnings applied here, cartons built to FBA dimension limits, and we can split a shipment across fulfilment centres if you send the plan. Doing it at the factory removes a prep-centre handling fee and about a week of transit on every restock. Watch dimensional weight on this category — the carton is light for its size, so FBA usually bills on volume.
End users & institutions
On TW-1004 laser engraving is the safe call for daily institutional washing. Canteens, schools and site catering wash hard and often, and this category goes through more of it than a drinks bottle because it holds food. Laser engraving costs slightly more up front and removes the complaint entirely: the mark is cut into the steel and reads the same after a season of commercial dishwashing, while printed artwork on a coated body visibly fades.
Failures we hear about from buyers who switch to us
These are the failures buyers describe when they explain why they are switching. None of them are exotic — they are what gets cut when a quote has to come in lower.
✓
Coatings that chip
Cheap outer paint scratches through within weeks and the product looks second-hand on a shelf long before it stops working.
✎
Importers & wholesalers
— Workable from 500 pieces per design. At 30 pcs per 62cm×47cm×53cm carton, a 20ft container takes roughly 5,000 pieces of this model alone — worked from the biggest of this model’s carton sizes, and confirmed on the pro forma once the load plan is fixed. Tell us the full model list at enquiry rather than one at a time — the quote changes when several models share a colour run or a carton size.
⚑
Brand owners & private label
— Already used this way. The body has enough uninterrupted surface for a printed or engraved logo without fighting a curve, and buyers regularly take it with a matched Pantone at 1,000 pieces.
◷
Promotional & gifting
— One of the stronger uses for this model. Give us the in-hands date at enquiry rather than after artwork approval — we work backwards from it and tell you honestly whether it is achievable.
☑
End users & institutions
— Suited to schools and campus retail. For institutional buying, specify laser engraving rather than print — a printed logo on a coated body typically fades within one season of daily commercial dishwashing, while an engraved mark is cut into the 304 steel and does not.
Where TW-1004 is actually made
Eight workshops in Yongkang, Zhejiang, running since 1998 — mould development, vacuum welding, injection moulding, spray painting, laser marking, printing, assembly, inspection and packing, all in one building. For TW-1004 the stage worth watching is the vacuum draw and the wide-mouth seal.
A food jar is harder to build than a drinks flask for one reason: the mouth is wide, so the sealing surface is long and the liner has a bigger opening to close around. We draw the vacuum on the liner as a semi-finished part and test it there — before assembly, before coating, before your logo goes on. A weak draw passes a same-day test and fails two months later, and on a finished, printed, shipped jar that flaw is invisible until it is your customer’s problem. The second bench that matters is the inverted seal test: liquid in, lid on, upside down. We run it because a jar that seeps congee into a laptop bag is returned once and never bought again.
We inspect 8% of every batch rather than a fixed sample per shipment. Buyers are welcome on site — eight workshops in Yongkang, Zhejiang, running since 1998, about three hours by road from Ningbo port and two from Hangzhou airport, which makes a factory visit a realistic side trip rather than a separate journey. Ask to see that bench specifically; it is where the difference shows — we check vacuum integrity on 100% of bodies at the semi-finished stage, before assembly and coating, because a micro-leak is undetectable once the jar is built.
Is TW-1004 the right one for your programme?
Importers & wholesalers — Workable from 500 pieces per design. At 30 pcs per 62cm×47cm×53cm carton, a 20ft container takes roughly 900 pieces of this model alone. Tell us the full model list at enquiry rather than one at a time — the quote changes when several models share a colour run or a carton size.
Brand owners & private label — Already used this way. The body has enough uninterrupted surface for a printed or engraved logo without fighting a curve, and buyers regularly take it with a matched Pantone at 1,000 pieces.
Promotional & gifting — One of the stronger uses for this model. Give us the in-hands date at enquiry rather than after artwork approval — we work backwards from it and tell you honestly whether it is achievable.
End users & institutions — Suited to schools and campus retail. For institutional buying, specify laser engraving rather than print — a printed logo on a coated body typically fades within one season of daily commercial dishwashing, while an engraved mark is cut into the 304 steel and does not.
FAQ
Ordering TW-1004 — common questions
Why TW-1004 rather than another model in this range?▾
This one runs 520 ml, and it is the one with styling aimed at a younger buyer, the most gift-appropriate shape here. End users are office workers carrying a hot lunch, commuters, parents carrying baby food and warm porridge, baby and toddler food, students and school lunches. The other models in this range answer different briefs. Describe the end use and we will tell you which one actually fits.
How long does TW-1004 keep food hot?▾
At 520 ml, expect around 8 hours with a full fill, less if it is opened repeatedly or only half filled. The double-wall 304 stainless body is the reason: with the air drawn out between the walls there is almost nothing left to conduct heat away. Two habits worth printing on your packaging — rinse with boiling water before filling, and fill it as close to the top as practical.
Which colours can we order TW-1004 in?▾
Stock colours are black, white — those run from 500 pieces per design. A matched Pantone is a separate spray or resin run and starts at 1,000 pieces. Mixed-colour containers are normal here: several buyers deliberately split a container across colours to see which ones move before committing to one.
How do we brand TW-1004?▾
Two routes. Engrave, and it outlives the product but comes out steel-coloured. Print, and you get your Pantone but it wears with washing. For canteen and institutional buyers we say engrave; for retail and gifting, print is usually fine.
What is the MOQ, lead time and carton spec for TW-1004?▾
Entry quantity is 500 per design. Custom Pantone doubles that to 1,000, since the colour is a separate spray or resin run rather than a stock item. Production runs 30 days after deposit and artwork approval, sample in 7–10 days. Packing is 30 pcs per carton at 62cm × 47cm × 53cm. Terms are EXW, FOB Ningbo / Shanghai or DDP door to door — whichever suits how you already import.
Get a quote on TW-1004
Tell us the quantity, colours and how you want the logo applied — we reply within 24 hours, Monday to Saturday.
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